8.5mm HSS Cobalt JOBBER Drill BIT for Drilling Hard Metals Steel, DIN338

good product.

It wa dimensionally accurate (essential for drilling a hole that is going to be tapped). Works as expected . I wont give five stars as it has seen limited use so far.

Had to drill 108 holes in thick stainless steel and other drill bits didn't were gone after 5 holes with the same speed and lubricant while this ones could go without problems, still recommend to get two of them if you need to drill loads of holes and swap them every 15/20 to allow them to cool down.

excellent did not think it would work so well , I had bought many drill from the store but they just do one drilling then nothing.

Great drills - went through SS so easy

DOES WHAT IT SHOULD DO